Narrowing the agent sidebar clips the import-threads banner title
mid-word. The title now wraps instead of overflowing the close button.

<img width="212" height="279" alt="Screenshot 2026-08-16 at 11 25 26 PM"
src="https://github.com/user-attachments/assets/03e20b9d-ea29-4872-a4c1-f364509ddacb"
/>

Release Notes:

- Fixed the agent sidebar import-threads banner clipping its title when
the panel is narrow